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Title: Angiotensin II receptor subtypes in the human central nervous system.
Austin Authors: MacGregor, Duncan;Murone, Carmel ;Song, K;Allen, A M;Paxinos, G;Mendelsohn, Frederick AO
Affiliation: Department of Medicine, University of Melbourne, Austin Hospital, Heidelberg, Australia
Issue Date: 27-Mar-1995
Publication information: Brain Research; 675(1-2): 231-40
Abstract: The distribution of the AT1 and AT2 subtypes of angiotensin II receptor was mapped in the adult human central nervous system using quantitative in vitro autoradiography. Binding in all forebrain, midbrain, pontine, medullary and spinal cord sites where angiotensin II receptors have previously been described is of the AT1 subtype, as is binding in the small and large arteries in the adjacent meninges and in choroid plexus. By contrast, both AT1 and AT2 receptors occur in the molecular layer of the cerebellum. Angiotensin II AT1 receptors in the brain show a moderate degree of conservation across mammalian species studied so far, whereas expression of AT2 receptors is more variable, and is more restricted in the human CNS than in many other mammals. These differences between the subtype distributions in humans and other animals indicate the need for care when extrapolating the results of animal studies involving the brain angiotensin system.
Gov't Doc #: 7796134
Type: Journal Article
Subjects: Aged
Aged, 80 and over
Angiotensin II.antagonists & inhibitors.metabolism
Angiotensin Receptor Antagonists
Biphenyl Compounds.pharmacology
Brain.drug effects.metabolism
Central Nervous System.drug effects.metabolism
Radioligand Assay
Receptors, Angiotensin.agonists.metabolism
Spinal Cord.drug effects.metabolism
Appears in Collections:Journal articles

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